Slashdev

Slashdev is a software engineering company that builds custom applications and AI agents for startups and established businesses. It lists London as its headquarters and Stockholm as an engineering office. Other sources also place offices in Seattle. The founders take part in each project, and the firm uses Claude Code and agentic methods in its own delivery.

Its AI work covers agents for customer service, sales outreach, content and process automation. It also integrates large language models from Anthropic, OpenAI, Google and xAI, and builds retrieval pipelines, chatbots, voice AI and document processing. It adds AI features to Shopify, Salesforce and HubSpot, and offers technical SEO work aimed at visibility in AI search tools.

On the engineering side, the team works in React, Next.js, Laravel, Node.js, React Native, Flutter and native iOS and Android. It also covers cloud, DevOps and security testing. Clients come from fintech, health, education, e-commerce, property, legal, insurance, gaming and SaaS. Many engagements place senior engineers into a client's existing team, for example frontend, backend, mobile and QA roles, while others are fixed-scope product builds. The firm also sells its own products, including a CRM and an applicant tracking system.